BIOL214 Lecture Notes - Lecture 2: Energy Carrier, Anabolism, Catabolism
Document Summary
Understand the requirements, flow and forms of energy in metabolic biochemistry. Metabolism: highly coordinated cellular activity in which multi-enzyme systems. Cooperate to: obtain energy degrading energy rich nutrients or capturing solar energy, convert nutrient molecules to cells own molecules, polymerise monomers to polymers, synthesis ad degrade biomolecules, maintain distinctive composition of different cell compartments. Catabolic and anabolic metabolism: catabolic and anabolic pathways constitute the metabolism of a cell, enzymes catalyse these 2 pathways, almost always distinct from each other. Relate prior knowledge about oxidation and reduction to metabolic biochemistry. Three forms of energy: energy carriers, contain >1 energy rich covalent bond, macromolecules, highly reduced molecules (= electron rich), large branches polysaccharides (glycogen/starch), fatty acids, electrochemical gradients, electrical force (membrane potential, chemical force (ion concentration) Oxidation of organic molecules is an important fuel source. Oxidation and reduction: oxidation: removal of electrons to a molecule, reduction: addition of electrons to a molecule.
